Update python-publish.yml

Author: Martin de La Gorce

.github/workflows/python-publish.yml

@@ -32,7 +32,10 @@ jobs:
         uses: actions/setup-python@v3
         with:
           python-version: '3.10'
-
+      - name: Install dependencies
+        run: |
+          python -m pip install --upgrade pip
+          pip install build
       - name: Build source distribution from src
         run: python -m build --sdist --outdir dist    
       - name: Publish package distributions to PyPI